Railway-car truck



- 2 Sheets-Sheet 1 @www . 9 im QN am u .El

Oct. 26 1926.

- J. A. LAMoN-r RAILWAY CAR TRUCK Filed sept. l12, 1924 J. A. LAMONT I RAILWAY CAR TRUCK Filed Seli/ifm 1924 um Hn- 1 l I ,Ilm

fnl/51375?" LO/m J Lamofz Patented Unt. 26, 1926.

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JOHN A. LAMOIV'I, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN STEEL FOUNDRIES,

OF CHICAGO, ILLINOIS, A CORPORATION' OF NEW JERSEY.

RAILWAY-CAR TRUCK.

Application iled September 12, 1924. Serial No. 737,259.

This invention relates to truck.

In operating over vertical curves or tracks the elevation or' which changes somewhat abruptly, such for example as are encountered at coal tipples, there is a tendency in a tour-wheel car truck for the bolster to angle about its horizontal axis with respect to the side trame, and in a six-wheel truck of the type shown in my Patent #1,483,638 granted February 12, 1924, wherein an equalizing lever is used, under the conchtions mentioned hereinabove, there is a tendency for the bolster to rotate about its horizontal. axis with respect to the equalizing lever and side trame. Unless some special provision is made, there will be a cramping action between the lbolster and associated parts, thereby preventing the proper freedom of angling movement between a bolster and its associated side 'trame or equalizing lever or other associated part.

Accordingly, one object of my invention is to provide simple, 'durable and eh'icient means whereby a bolster may be operatively mounted within the bolster opening of the associated member, whereby such bolster not only will be permitted its normal vertical movement, but also will have a pivotal movement about a horizontal pivot for permitting a relative angling movement between the bolster and said associated member for making possible the easy and ready taking of vertical curves without any cramping action.

Another object is to provide a simple and eilicient guide connection between a bolster and an associated frame member for permitting relative angling movement therebetween.

Another object is to provide a simple, durable and eilicient railway car truck in which the various parts cooperate to permit treedom o1 movement 01:' the various parts both on horizontal and vertical curves and adapted to meet all of the requirements under service conditions.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying` sheets of drawings, in which- Figure 1 is a side elevation of a railway car truck embodying my invention,

Figure 2 is a fragmentary top plan view of the same,

a railway car Figure 3 is a fragmentary side elevation on an enlarged scale of a car truck embodying` the invention,

Figure tis a fragmentary top plan view ot the 'arrangement shown in Figure 3,

Figure 5 is a sectional view taken in the plane oitl line 5 5 of Figure 2, and

Figure 6 is a sectional view taken in the planes ot irregular line 6 6 o1 Figure 1.

'lhe various novel features ont the invention will be apparent from the following description and drawings, and will be particularly pointed out in the appended claims.

Although my invention is applicable in certain respects to tour-wheel car trucks, it will be noted that it is illustrated in connection with a six-wheel car truck having a side trame 10 which may be formed in a single casting or may be fabricated as desired.

As shown, the side trame member l0 is in a single casting and has formed near each of its ends a pedestal 1l for the reception of an end journal box 12. rlhe intermediate journal box 13 is mounted in jaws 11i formed at one end ot an equalizing lever 15 one end of which is pivotally connected at 16 to the side traine 10. An associated equalizing lever 15 at the same side ot' the truck is also shown as embodying the invention so that only one will be described in detail. rlhis equalizing lever 15 is in the form ci: a truss, having va compression member 17 and a tension member-18 and column guides 19 iorming a bolster opening for the reception of a transverse bolster' member 20. Each transverse bolster member at its ends is mounted upon springs 21L which rare seated upon the tension member 18 ot the equalizing lever within the bolster opening.

By referring to my earlier Patent No. 1,483,638 above mentioned, it will be noted that the transverse bolster members cooperate with bolster guides *formed on the side trame, while in the present arrangement said trame is not provided with bolster guides. On the other hand, the equalizing lever is provided with the bolster guides 19. The bolster members 2O however do not directly engage said bolster column guides 19. In this connection a bolster pivot guide 21 is provided which may be said to be E-shaped in section, the outer vertical legs 22 of which have a sliding` vertical lit with respect to the column guides 19. It will be` noted.,

that the side ilanges 23 of said vertical legs 22 have considerable clearance with respect to the column guides 19 and purposely do not normally engage same, said i'langes 23 merely being` provided tor strengthening` purpo-ses. rlhe middle vertical leg 2d of the bolster pivot guide extends downwardly vertically into a pocket 30 in the end ot the associat-ed bolster member and is pivotally Connected to the bolster member by a4 pin 25, said pin being horizontally arranged and passing through vsaid middle leg 2s and through walls 26 oi said poclret and retained therein by any suitable means, such as a key 2'?. it will be noted that the side walls et said pocket 30 diverge upwardly as shown in Figure 3, 'for the purpose of allowing proper clearance and permitting the relative pivotal movement between the bolster member and pivot guide, or between the bolster member and the equalizing lever with which said pivotal guide member is operatively associated. 'lf his clearance for permitting the relative pivotal movement in question is also shown in Figure 6, wherein it will be noted that the bolster has the usual guide langes 28 which. however, in this case cooperate with the outer and vertical legs 22 of the pivotal guide member tor limiting lateral movement between said bolster and said pivotal guide member. The outward lateral movement otl the bolster, however, is limited by a stop member 29 "formed thereon and arranged to engage the side frame 10. ln this way the equalizing lever is relieved from any side blow or strain transmitted from the bolster. 'lhe pivotal connection `at 16 between the equalizing lever and side trame not only will permit the proper vertical angling movement which becomes necessary in the taking` ot vertical curves, but also will be suiliciently loose to permit the necessary horizontal relative angling movement between the equalizing lever and side iframe for taking horizontal curves. The bolster pivot guide as it is arranged, provides for a tree rocking or relative pivotal action between the bolster and equalizing lever and at the same time permits a tree vertical movement et the bolster member with respect to the equalizing lever and side trame. While the bolster is permitted to pivot on a horizontal axis, the vertical center line oit the bolster pivot guide will remain constant with respect to the center line of the equalizing lever, as shown in Figure 3.

ln connection with assembling the bolster' 2O and bolster guide member 21 with respect to the equalizing lever 18, it is necessary to have the lower end ot the bolster opening` enlarged to receive the guide member 21 before the latter can be raised or inserted into its normal posit-ion in the relatively restricted portion ot the openingl between the column guides. The bolster is then passed intorecessie By means ot this arrangement a. simple,

durable, and e'licient truck is provided which is iexible and Ais adapted to meet all of' the requirements under service conditions.

l claim:

1. ln a six wheel truck, the combination o1" a side trame, an equalizing lever operatively associated therewith and having bolster column guides, a bolster between said guides antV means interposed between said equalizing lever and bolster for permitting a relative angling movement therebetween.

2. in a. six wheel truck, the combination oic a side trame, an equalizing lever operatively associated therewith and having bolster column guides, a bolster, and means pivotally connected to said bolster and cooperatingl with said column guides tor permitting` a relative angling movement thereetween.

ln a six wheel truck, the combination oi a side trame, an equalizino` lever associated with said side frame and having` bolster column guides, a bolster, and means having a sliding movement with respec to said bolster' column guides and a pivotal movement with respect to said bolster tor permitting` a relative angling movement l etween said equalizing lever and bolster.

ll. ln a six wheel truck, the combination ol a side iframe, an equalizing lever operatively associated with said trame and having bolster column guides, a bolster and means having a reciprocatory movement with respect to said bolster column guides and a pivotal movement with respect to said bolster 'for permitting a relative angling` movement between said lever and bolster.

5. ln a six wheel truck, the combination ot a side trame, an equalizing lever operatively associated therewith and. having a bolster column guide, a bolster, and means operatively connecting said bolster column guide and bolster tor permitting a relative angling movement between said equalizing lever and bolster.

6. ln a` six wheel truck, the con'ibination of a side trame, an equalizing lever pivotally connected thereto and having a bolster opening, a bolster in said opening, and a member operatively connecting` said bolster and equalizing lever lor permitting a relative ztnglingl movement therebetween.

7, ln a siiwheel truck, the con'ibination ot side trame, an equalizing lever operatively associated with said side lirame and having a bolster opening', a bolster in said opening, and a member operatively connecting said bolster and equalizing lever tor permitting` a relative angling movement therebetween.

ilo

8. l'n a railway Car truck, the combination of a member having column guides and a bolster opening therebetween, springs mounted in said opening, a bolster mounted on said springs, and means interposed between said member and bolster and extending into the bolster for permitting a rela tive angling movement therebetween.

t). ln a railway car truck, the combination of a member having a bolster opening, a bolster mounted in said opening and having a pocket therein, and guide means mounted in said opening and having a portion extending into said pocket pivotally connected to said bolster for permitting a relative angling n'iovement between said member and bolster.

10. ln a railway car truck, the combination of a member having a bolster opening, a bolster mounted in said opening and having a receiving pocket, and means also mounted in said opening and having pivotal connection with said bolster in said pocket for permitting a relative angling movement between said member and bolster.

11. ln a six wheel truck, the combination of a side frame, an equalizin'g lever operatively associated with said side frame and having column guides with a bolster opening therebetween, a bolster mounted in said opening, and a guide member slidably moiiinted with respect to said bolster guides and pivotally connected to said bolster member to permit a relative angling movement between said equalizing lever and bolster, said bolster and member having cooperating guiding portions.

12. ln a six wheel truck, the combination of a side frame, an equalizing lever operatively associated with said side frame and haif'ing column guides with a bolster opening' therebetween, a bolster mounted in said opening, and a guide member slidably mounted with respect to said column guides and pivotally connected to said bolster to permit a relative angling movement between said equalizing lever and bolster', said bolster and guide member having cooperating guiding portions, said bolster having a stop portion adapted to engage said side frame for limiting lateral movement of said bolster in one direction.

13. ln a railway car truck, a member having a bolster opening, a bolster mounted therein, and a bolster guide member mount ed in said opening` and having a portion extending into said bolster having clearance with respect to said bolster for permitting a rocking of said bolster with respect thereto.

111. In a railway car truck, a member having a bolster opening, a bolster mounted therein, and a bolster guide member mounted in said opening and having a portion extending into said bolster having clearance with respect to said bolster for permitting a rocking of said bolster with respect thereto, said bolster and guide member having cooperating guide surfaces for limiting lateral movement therebetween.

15. ln a six wheel truck, the combination of a side frame, an equalizing lever associated with said side frame and having bolster column guides, a bolster and a bolster pivot guide pivotally connected to said bolster and cooperating with said column guides whereby said bolster may have a free rocking movement relative to said equalizing lever.

1G. is an article of manufacture, a railway car truclt equalizing level' having bolster column guides.

17. As an article of manufacture, a railway car tru-ck equalizing lever in the form of a truss having a bolster column guide.

18. As an article of manufacture, a railway car truck equalizing lever having bolster column guides forming an opening a portion of which is enlarged to make possible assembly of associated parts.

19. In a railway car truck, the combination of an equalizing lever having bolster column guides forming an opening a portion of which is enlarged, a bolster guide member normally located in a relatively restricted portion of said opening and inserted into said restricted portion through said enlarged portion.

20. ln a railway car truck, the combination of an equalizing lever having bolster column guides forming an opening a portion of which is enlarged, and a bolster normally located in a relatively restricted portion of said opening` and inserted into said restricted portion through said enlarged port-ion.

Signed at Chicago, Illinois, this 26th day of August, 1924:.

J. A. LAMONT. 

